Light electric vehicle parking and charging stations and smart charging systems for the vehicle batteries

ABSTRACT

A universal charging system is disclosed. In one example embodiment, the universal charging system includes a charging adapter configured to be mounted on a light electric vehicle (LEV), a charging station, and a processor configured to control charging of the LEV. The charging adapter may have electrical contacts for docking with a charging station and a charging interface for supplying power from the charging station to a battery of the LEV. The charging station may have at least one docking unit for receiving the charging adapter of the LEV. The at least one docking unit may have further electrical contacts for connecting to the charging adapter of the LEV.

CROSS-REFERENCES TO RELATED APPLICATIONS

This application is a continuation of U.S. application Ser. No.16/983,591, filed Aug. 3, 2020, which is a continuation of U.S.application Ser. No. 16/523,369, filed Jul. 26, 2019, which claims thepriority benefit of U.S. Provisional Application Ser. No. 62/703,607,filed Jul. 26, 2018, and U.S. Provisional Application Ser. No.62/828,313, filed Apr. 2, 2019. The disclosures of these applicationsare incorporated by reference herein in their entireties.

TECHNICAL FIELD

The present invention relates generally to light electric vehicles(LEVs) such as electric bicycles and electric scooters and moreparticularly to charging systems and apparatuses for the LEVs.

BACKGROUND

LEVs such as electric bicycles and electric scooters have become a verypopular mode of transportation, particularly when used as short termrentals. While the usefulness of LEVs vehicles is widespread, thevehicles are battery powered, and as such, require that their batteriesremain charged to maintain the utility of the vehicle. Accordingly,systems, methods, and apparatuses to store LEVs and to recharge theirbatteries when the charge runs out are essential to maintaining theutility of the vehicles.

As a result of utilizing the teachings of the present disclosure,various LEV brands can be plugged into a single charging system,including both public and private LEVs. For example, private users mayaccess charging systems built for public LEVs to recharge their personalLEVs.

Existing methods for fleet charging LEVs are expensive, unreliable,generate traffic, provide little ability for quality control, andregularly take vehicles completely out of service for indeterminateperiods of time. For example, in-field battery swaps require the user orfleet operator to have an extra battery. Many LEVs have the batterybuilt into the frame and as such they are not made to be removed andreplaced. Batteries in LEVs that are designed to be removable can beexchanged for fully charged batteries, but this requires the user tocarry a large and heavy battery to various and perhaps widespreadlocations, or for a fleet operator to locate a discharged vehicle,travel to the location, and change the battery pack. These are costlyand inconvenient procedures.

Individual owners and riders of LEVs carrying alternating current(AC)/direct current (DC) chargers need access to a power supply,typically an AC outlet, to plug in their chargers away from home, whichgreatly limits the available options. In many instances, wall outletsare simply not accessible at or near outdoor LEV parking spaces. Quiteoften, LEVs are not allowed in or are considered inappropriate forindoor environments for charging. Fleet operators also have a difficulttime with having users carry AC/DC chargers because this approach wouldrequire a charger to be issued to everyone renting a vehicle.

Replacing LEVs in the field also presents a significant logisticschallenge and is unreliable and unpredictable. Thus, the existingmethods of charging depleted LEV batteries are labor intensive,expensive, and put the burden of planning for recharging on the LEV useror the LEV fleet operator.

Charge hubs that are connected to city power supplies and are configuredto service only one make/brand of LEV manufacturer are costly andinefficient. Such limited charging solutions are not feasible forgeneral use due to the diverse types of LEVs available in themarketplace. Because such charge hub methods are brand-specific,scalability for multi-brand charging becomes impossible. In addition,the ability of charge hubs to be used by private individuals who desireto use their own LEVs in the public domain for quick-charge applicationsfor mobility in lieu of automobile or ride-hailing services is severelylimited. Moreover, the need to be in communication with the subjectcity's electric grid drastically limits the geographic locations wheresuch charging stations can be placed.

SUMMARY

This summary is provided to introduce a selection of concepts in asimplified form that are further described below in the DetailedDescription. This summary is not intended to identify key features oressential features of the claimed subject matter, nor is it intended tobe used as an aid in determining the scope of the claimed subjectmatter.

According to one approach of the present disclosure, a universalcharging system is provided. The universal charging system may include acharging adapter configured to be mounted on a LEV, a charging station,and a processor configured to control charging of the LEV. The chargingadapter may have electrical contacts for docking with a charging stationand a charging interface for supplying power from the charging stationto a battery of the LEV. The charging station may have at least onedocking unit for receiving the charging adapter of the LEV. The at leastone docking unit may have further electrical contacts for connecting tothe charging adapter of the LEV.

According to another approach of the present disclosure, a LEV dockingstation is provided. The LEV docking station may have a plurality ofdocking bays. Each of the plurality of docking bays may include adocking unit and a wheel block. The docking unit may include at least adocking member configured to reversibly receive a LEV. The wheel blockmay be configured to align the LEV in the docking unit and limit amovement of the LEV after the LEV is docked with the docking unit.

According to another approach of the present disclosure, a system forcontrolling charging of one or more LEVs at a LEV docking station isprovided. The system may include a processor in communication with oneor more docking units of the LEV docking station and a memory unit incommunication with the processor and configured to store instructionsexecutable by the processor. The processor may be configured todetermine a presence of a LEV connected to one of the one or moredocking units and identify parameters associated with the LEV. Theprocessor may be configured to determine a charge voltage of the LEVbased on the parameters. The processor may be further configured todevelop a charging profile for the LEV based on the charge voltage andthe parameters. The processor may be further configured to instruct theone of the one or more docking units to supply power to the LEV based onthe charging profile.

Additional objects, advantages, and novel features will be set forth inpart in the detailed description section of this disclosure, whichfollows, and in part will become apparent to those skilled in the artupon examination of this specification and the accompanying drawings ormay be learned by production or operation of the example embodiments.The objects and advantages of the concepts may be realized and attainedby means of the methodologies, instrumentalities, and combinationsparticularly pointed out in the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS

The features of the invention are set forth with particularity in theappended claims. A better understanding of the features and advantagesof the present invention will be obtained by reference to the followingdetailed description that sets forth illustrative embodiments, in whichthe principles of the invention are utilized, and which the accompanyingdrawings illustrate.

FIG. 1A is an overall perspective view of a universal charging system,according to an example embodiment.

FIG. 1B is a side view of a universal charging system, according to anexample embodiment.

FIG. 2A is a rear perspective expanded view of a universal chargingsystem, according to an example embodiment.

FIG. 2B is a front perspective expanded view of a universal chargingsystem, according to an example embodiment.

FIG. 3 is an expanded view of a docking unit, according to an exampleembodiment.

FIG. 4 is a schematic diagram illustrating a universal charging system,according to another example embodiment.

FIG. 5 is an expanded view of a universal charging system, according toan example embodiment.

FIG. 6 is a top-down close-up view of a docking unit of a chargingstation, according to an example embodiment.

FIG. 7A is a close-up view of a charging adapter separate from a dockingunit, according to an example embodiment.

FIG. 7B is a close-up view of a charging adapter docked with a dockingunit, according to an example embodiment.

FIG. 8A is an illustration of a LEV docked with a docking unit of acharging station, according to an example embodiment.

FIG. 8B is an illustration of a LEV docked with a docking unit of acharging station, according to an example embodiment.

FIG. 8C is an illustration of a LEV docked with a docking unit of acharging station, according to an example embodiment.

FIG. 9 is a section view of a docking unit, according to an exampleembodiment.

FIG. 10A is a schematic diagram of a LEV docked with a docking unit,according to an example embodiment.

FIG. 10B is a schematic diagram of a LEV docked with a docking unit,according to an example embodiment.

FIGS. 11A-11F are schematic diagrams of a LEV docked with a dockingunit, according to an example embodiment.

FIG. 12A is a top view of a LEV docked with a docking unit, according toan example embodiment.

FIG. 12B is a general perspective view of a LEV docked with a dockingunit, according to an example embodiment.

FIGS. 12C and 12D are enlarged views of a charging adapter of a LEVengaged with a docking unit, according to an example embodiment.

FIG. 13A is a general perspective view of a LEV docked with a dockingunit, according to an example embodiment.

FIG. 13B is an enlarged view of the docking unit having a cutout,according to an example embodiment.

FIG. 14A is a side view of a docking unit with a cutout, according to anexample embodiment.

FIG. 14B is a front view of a docking unit, according to an exampleembodiment.

FIG. 14C is a front view of a docking unit, according to another exampleembodiment.

FIG. 15 is a general perspective view of a LEV docked with a dockingunit, according to another example embodiment.

FIG. 16 is a general perspective view of a LEV docking station,according to an example embodiment.

FIG. 17A is a front perspective view of a LEV docking station, accordingto an example embodiment.

FIG. 17B is an upper perspective view of a LEV docking station,according to an example embodiment.

FIG. 18A is a front perspective view of a LEV docking station, accordingto an example embodiment.

FIG. 18B is a rear perspective view of a LEV docking station, accordingto an example embodiment.

FIG. 19A is a schematic diagram of a LEV docking station with LEVs,according to an example embodiment.

FIG. 19B is a schematic diagram of a LEV docking station with no LEVsdocked, according to another example embodiment.

FIG. 20A is an overall perspective view of a LEV docking station havingdocking units and wheel blocks for each of LEVs, according to an exampleembodiment.

FIG. 20B is a side perspective view of a LEV docking station havingdocking units and wheel blocks for each of LEVs, according to an exampleembodiment.

FIG. 21A shows an upper view of a wheel block, according to an exampleembodiment.

FIG. 21B shows a front perspective view of a wheel block.

FIG. 21C shows a rear perspective view of a wheel block.

FIG. 22A is an enlarged view of the docking unit with a LEV docked witha docking unit, according to an example embodiment.

FIG. 22B is an enlarged view of the docking unit with no LEVs docked,according to an example embodiment.

FIG. 23A is a side view of a LEV docking station with LEVs, according toan example embodiment.

FIG. 23B is a top perspective view of a LEV docking station with no LEVsdocked, according to another example embodiment.

FIG. 24A is a top perspective view of a LEV docking station, accordingto an example embodiment.

FIG. 24B is an enlarged view of the LEV docking station, according to anexample embodiment.

FIG. 25 is a schematic diagram of a LEV docking station, according to anexample embodiment.

FIG. 26A is an upper view of a LEV docking station with a plurality ofdocking bays for LEVs, according to an example embodiment.

FIG. 26B is a front perspective view of a LEV docking station with aplurality of docking bays for LEVs, according to an example embodiment.

FIG. 27A is a rear perspective view of a LEV docking station, accordingto an example embodiment.

FIG. 27B is a rear view of a LEV docking station, according to anexample embodiment.

FIG. 28A is a rear perspective view of a LEV docking station, accordingto another example embodiment.

FIG. 28B is an enlarged view of the docking unit of the LEV dockingstation, according to an example embodiment.

FIG. 29A is a perspective view of a LEV docking station, according to anexample embodiment.

FIG. 29B is a front perspective view of a LEV docking station, accordingto an example embodiment.

FIG. 30 is a block diagram showing a system for controlling charging ofone or more LEVs at a LEV docking station, according to an exampleembodiment.

FIG. 31 shows a block diagram of a power board, according to an exampleembodiment.

FIG. 32 is a block diagram of a charge head board, according to anexample embodiment.

FIG. 33 is a computing system that can be used to implement a method fordevelopment of concentration, according to an example embodiment.

DETAILED DESCRIPTION

The following detailed description includes references to theaccompanying drawings, which form a part of the detailed description.The drawings show illustrations in accordance with exemplaryembodiments. These exemplary embodiments, which are also referred toherein as “examples,” are described in enough detail to enable thoseskilled in the art to practice the present subject matter. Theembodiments can be combined, other embodiments can be utilized, orstructural, logical, and electrical changes can be made withoutdeparting from the scope of what is claimed. The following detaileddescription is, therefore, not to be taken in a limiting sense, and thescope is defined by the appended claims and their equivalents. In thisdocument, the terms “a” and “an” are used, as is common in patentdocuments, to include one or more than one. In this document, the term“or” is used to refer to a nonexclusive “or,” such that “A or B”includes “A but not B,” “B but not A,” and “A and B,” unless otherwiseindicated.

The present disclosure provides systems, devices, and methods forcharging and/or docking LEVs. The systems, devices, and methods of thepresent disclosure allow individuals and fleet operators to use the LEVsin both high density urban environments and suburban mixed-usecommunities. In certain aspects, the present disclosure provides for auniversal charging system that includes a charging adapter configured tobe mounted on LEVs and a charging station deployed in public and privatelocations. The charging adapter may include a universal charge adaptorconfigured to be retrofit onto existing LEVs to enable charging byvarious charging stations. Such charging stations may be geographicallypositioned as part of one or more different charging networks to allowconvenient and on-the-go charging. The universal charging system withcharging stations can be configured to provide alternative and/or hybridpower solutions that may incorporate multiple energy sources (e.g.,connected to an electric grid of a city, or solar power with or withouton-site battery storage). This approach is superior to conventionalmethods for repowering LEVs, which may require in-field battery swaps,carrying a manufacturer-supplied AC/DC charger, having AC wall poweraccess, or using public charging hubs that run off of city power and arededicated to charging one make/brand of a LEV manufacturer. Otherconventional systems require using designated workers that locate,retrieve, charge, and replace LEVs in the field regularly.

In an example embodiment, the charging adapter may include a charginginterface suitable for adapting a diverse array of LEVs to use theuniversal charging system. By standardizing the charging interface, allLEVs can be adapted to use the universal charging system. In someembodiments, the charging station may be deployed in public and privatelocations to provide charging access everywhere. In some embodiments, inlocations lacking a built-in power supply, the charging station may bepowered using solar or wind as a completely off-grid unattended chargingstation. In some embodiments, the charging station may be connected to acommunication network, such as a cellular network, and may optionallyreport a charge status and/or vehicle identification (ID) for each LEVbeing charged by reading a unique ID chip located in each chargingadapter. The ID chip may store a unique identifier, which can be read bya processor of the charging station, stored in a backend database, andfurther used for cross-referencing information related to the LEVs basedon the unique identifiers. In some embodiments, a power source of thecharging station is regulated and compliant, and commonality withconnectors of the charging adapter may ensure that the LEVs have properelectrical treatment during charging. Moreover, in some embodiments, thecharging station may be equipped with a locking mechanism that may beactivated upon request by a vehicle owner to sequester a LEV during therecharging cycle to insure a complete recharge when the LEV is docked,thus reducing or eliminating partial charging.

One advantage of the present disclosure is that it provides a universalcharging system that can generate power using alternative energy sourcesinstead of relying on conventional city owned or other power sources. Insome embodiments, the universal charging system has the ability to runwith an uninterruptible power system (UPS) and/or battery storage powerin the event alternative energy is insufficient. At scale, theinnovation of adapting an alternative energy source to power LEVs mayhave a tremendous advantage to the power grid requirements that may beincreasingly taxed as electric vehicles scale over fossil fuel poweredvehicles in the broader market.

Another advantage of the present disclosure is that it enables all typesof LEVs to charge using a single type of charging station byretrofitting a charging adapter to existing vehicles. Conventionalcharging methods use manufacturer-provided power supplies that areproprietary and that require a user to plug into an AC wall outlet. Incontrast, LEVs with a charging adapter according to the presentdisclosure can dock and charge in universal LEV charging stationseverywhere. Users and fleet operators may no longer need to carry extrahardware to ensure LEVs remain charged. LEVs may not need to be broughtinside to charge by a wall outlet. In-field battery swaps may becomeunnecessary, as will locating and retrieving the LEVs themselves. Usersmay dock LEVs in charging stations and the LEVs may always be chargedfor use. The charging stations can also include various features, suchas automatic and/or user selectable locking mechanisms for securing theLEV during charging.

Still another advantage of the present disclosure is that chargingadapters and/or docking units may allow operators to comply with localregulations regarding such docking solutions. Accordingly, in contrastto the conventional charging solutions, the present disclosure providescharging solutions that are well suited to both private users of LEVsand fleet operators. For example, deploying a vehicle retrofitted with auniversal charging adapter and charging stations may allow for theprovisioning of a charging ecosystem that is adaptable to a wide varietyof LEVs while facilitating consistency and uniformity of the chargingequipment and parameters.

Referring now to the drawings, FIG. 1A is an overall perspective view ofa universal charging system 100, according to an example embodiment.FIG. 1B is a side view of a universal charging system 100, according toan example embodiment. The universal charging system 100 may include acharging adapter 105 and a charging station 110. The charging adapter105 may be configured to be mounted on a LEV 115. In an exampleembodiment, the charging adapter 105 may be mounted on a headtube 120 ofthe LEV 115. The charging station 110 may include a docking unit 125 forreceiving the charging adapter 105 of the LEV 115. The charging station110 may further include a support 130 on which the docking unit 125 isdisposed. The support 130 can be vertical or inclined. In an exampleembodiment, an angle of inclination of the support 130 can be similar toan angle of inclination of the headtube 120 of the LEV 115. LEVsproduced by various manufactures typically have approximately the sameangle of inclination of the headtube, which is selected by themanufacturers so as to ensure a comfortable position for a user whenriding the LEV. The LEV 115 may include a vehicle, such as an electricbicycle or an electric scooter. In some embodiments, charging stations110 may be geographically positioned at public and private locations,allowing users to return and/or charge the LEVs 115 in easily accessiblepublic or private charging locations without requiring furtherassistance or extra equipment.

FIG. 2A is a rear perspective expanded view of a universal chargingsystem 100, according to an example embodiment. FIG. 2B is a frontperspective expanded view of a universal charging system 100, accordingto an example embodiment. The docking unit 125 may include a lockhousing 25 and a cover 30. The docking unit 125 is shown in detail inFIG. 3.

FIG. 3 is an expanded view of a docking unit 125, according to anexample embodiment. The charging station may include at least onedocking unit 125 for receiving a charging adapter of a LEV. The dockingunit may include further electrical contacts for connecting to thecharging adapter 105 of the LEV 115. In FIG. 3, the further electricalcontacts are shown as contact pins 20. The docking unit 125 may furtherinclude a contact block 1 and a locking mechanism represented by alocking arm 2, a tension arm 5, and a lock actuator 12. The lockingmechanism can be configured to lock the LEV into the docking unit 125.

FIG. 4 is an overall perspective view 400 of another example embodimentof a universal charging system 100, according to an example embodiment.The universal charging system 100 may include a charging adapter 105 anda charging station 110. The charging adapter 105 may be configured to bemounted on a LEV 115. In an example embodiment, the charging adapter 105may be mounted on a headtube 120 of the LEV 115. The charging station110 may include a docking unit 125 for receiving the charging adapter105 of the LEV 115.

FIG. 5 is an expanded view 500 of a universal charging system shown inFIG. 4. The charging adapter 105 can be configured to couple directly toa LEV of any manufacturer without requiring an alteration of an existingcharge connector of the LEV. Specifically, the charging adapter 105 mayinclude a cable for wiring with the existing charge connector or acharging port of the LEV 115.

Once the charging adapter 105 is installed on the LEV 115, the LEV 115can dock directly into the docking unit 125 of the charging station 110without the need for plugging in cables or locating a wall outlet.

The charging adapter 105 may include electrical contacts 22 for dockingwith the charging station 110 and a charging interface (shown ascharging interface 135 in FIG. 2B) for supplying power from the chargingstation 110 to a battery (not shown) of the LEV 115. The chargingadapter 105 may further include a collar 9 configured to enclose theheadtube 120 of the LEV 115. The charging adapter 105 may furtherinclude a charging adapter plate 10 attached to the collar 9. Theelectrical contacts 22 may be placed on the charging adapter plate 10.The charging adapter 105 may further include a housing and an adhesivebacking.

The charging adapter 105 may be injection molded or machined andelectrical contacts may be assembled into a housing of the chargingadapter 105. All electrical contacts may be wired into an integratedcircuit. Once all components of the charging adapter 105 are assembled,an industrial-strength, non-removable adhesive may be applied to sealall components and wires inside the housing of the charging adapter 105.

The charging station 110 may include at least one docking unit 125 forreceiving the charging adapter 105 of the LEV 115. FIG. 6 shows atop-down close-up view 600 of the docking unit 125 of the chargingstation. The docking unit 125 may include further electrical contactsfor connecting to the charging adapter 105 of the LEV 115. In FIG. 5,the further electrical contacts are shown as contact pins 20. Thedocking unit 125 may further include a contact block 1 and a lockingmechanism represented by a locking arm 2, a tension arm 5, a lockactuator 12, an actuator mounting bracket 19, a plate 21, and a lockhousing 25. The locking mechanism can be configured to lock the LEV intothe docking unit 125. The docking unit 125 may further include indicatorlights (e.g., red, green, yellow) and a mount 130. The contact pins 20may be disposed in the contact block 1. The locking arm 2 and thetension arm 5 may include spring roller grippers 135 configured to gripthe charging adapter 105 of the LEV 115. The locking mechanism may bemade by machining all components, assembling the components, andinstalling torsion springs for tensioning the roller grippers and springpin contacts for making electrical connection to the charging adapter.

The docking station 110 may further include a processor (not shown)configured to control charging of the LEV 115 and a battery storage (notshown) for storing power to be supplied to the LEV 115. In an exampleembodiment, the docking station 110 may further optionally include oneor more of a power inverter, a cellular radio, and a GPS locator.

The charging adapter 105 of the LEV 115 may further include an ID chipassociated with the LEV. The ID chip may store an identifier associatedwith the LEV. The processor of the docking station 110 may be configuredto store the identifier to a memory unit of the docking station 110.

In an example embodiment, the locking mechanism may be incorporated intothe docking unit 125. When the locking mechanism is employed, thelocking mechanism may enable the charging station to lock the LEV 115during the recharge process which can last, for example, as long as 5hours, depending on the LEV type and state of discharge. By locking theLEV 115 during the charging process, the universal charging system caninsure that each time the LEV 115 is docked into the charging station,the LEV 115 is charged completely.

The charging station may optionally have an indicator configured to showa charge status of the LEV. The indicator, such as LEDs, may enhance theuser experience by providing charge status feedback.

The charging station may have various options for power sources tosupply the power to the LEVs. The charging station may obtain power fromsolar, wind, electrical grid, liquid or gas fuel generators, or othersources. Specifically, the docking unit 125 may be configured to connectto one or more power sources. The power sources may include an electricgrid, a solar power source, a self-generating power source, a batterystorage, and so forth.

In an example embodiment, the charging station 110 may further include abackend platform in communication with the processor. The backendplatform may include an administrative panel, a customer portal, and auser portal. The backend platform may include a charge managementplatform having advanced reservation and scheduling capabilities as wellas advanced charge management capabilities. Connectivity and chargestatus monitoring of individual LEVs or fleet charging LEVs may beaccessed by users of LEVs or operators of the backend platform throughmobile applications running on user devices.

FIG. 7A shows a close-up view 700 of a charging adapter 105 separatefrom a docking unit 125. FIG. 7B shows a close-up view 750 of a chargingadapter 105 docked with a docking unit 125. The charging adapter 105 maybe firmly secured to a pre-determined location on a LEV 115. The cable(not shown) of the charging adapter 105 may be wired to a charging portof the LEV 115. A user may determine the location of the chargingstation using a mobile application. At the location of the chargestation, the user may push the LEV 115 into the docking unit 125 andcharging can start immediately. The user may return later, remove theLEV 115, and start riding LEV 115.

FIG. 8A is an illustration 800 of a LEV 115 docked with a docking unit805 of a charging station 110, according to an example embodiment. Thecharging station 110 may further include a base plate 810 and a conduit815 for power supply. The docking unit 805 may further include anindicator 825. The indicator 825 may be located at the intersection ofan upper surface 830 and a front surface 835 of the docking unit 805.The indicator 825 may include a bi-color LED that illuminates duringcharging. The red color may indicate that charging is in progress andthe green color may indicate that charging is completed. When theuniversal charging system detects that charging is complete, the“charging” LED indicator light turns off and the “ready to use”indicator light is illuminated. If an error or failure of any sort isdetected, a third indicator LED is illuminated. When the “ready to use”indicator is illuminated, any credentialed user may be able to removethe LEV 115 from the docking unit 805 by pulling the LEV 115 out.

FIG. 8B shows an illustration 840 of a LEV 115 docked with a dockingunit 845 of a charging station 110, according to an example embodiment.The docking unit 845 may have an indicator 865. The indicator 865 may belocated at the intersection of an upper surface 850, a front surface855, and a side surface 860 of the docking unit 865.

FIG. 8C is an illustration 870 of a LEV 115 docked with a docking unit875 of a charging station 110, according to an example embodiment. Thedocking unit 875 may have an indicator 880. The indicator 880 may belocated at the intersection of an upper surface 885, a front surface890, and a side surface 895 of the docking unit 875.

FIG. 9 shows a section view 900 of a docking unit, according to anexample embodiment. The docking unit 125 may include a housing 905, acable 910, a flange 915, a mounting arm 920, and a key element 925. Theflange 915 may be welded to the mounting arm 920. Two halves of thehousing 905 may align and clamp over the flange 915 on the mounting arm920. Two halves of the housing 905 may be bolted together.

FIG. 10A is a schematic diagram 1000 of a LEV 115 docked with a dockingunit 125, according to an example embodiment. An indicator 1005 on thedocking unit 125 may illuminate green to indicate that the charging ofthe LEV 115 is complete. FIG. 10B is a schematic diagram 1050 of a LEV115 docked with a docking unit 125, according to an example embodiment.An indicator 1055 on the docking unit 125 may illuminate red to showthat the charging of the LEV 115 is in progress.

FIGS. 11A-11F are schematic diagrams of a LEV 115 docked with a dockingunit 125. FIG. 12A is an upper view 1200 of a LEV 115 docked with adocking unit 125. FIG. 12B is a general perspective view 1250 of a LEV115 docked with a docking unit 125. FIGS. 12C and 12D show enlargedviews of a charging adapter 105 of a LEV 115 engaged with a docking unit125.

FIG. 13A shows a general perspective view 1300 of a LEV 115 docked witha docking unit 125. The docking unit 125 may include a cutout 1305 toreceive a front wheel of the LEV 105. FIG. 13B is an enlarged view 1350of the docking unit 125 having a cutout 1305.

FIG. 14A is a side view 1400 of a docking unit 125 having a cutout 1305.FIG. 14B is a front view 1450 of a docking unit 125. The docking unit125 may include an indicator 1405. FIG. 14C is a front view 1470 of adocking unit 125, according to another example embodiment. The dockingunit 125 may include an indicator 1455.

FIG. 15 is a general perspective view 1500 of a LEV 115 docked with adocking unit 125, according to another example embodiment. As shown inFIG. 12, the docking unit 125 has no cutouts for a front wheel of theLEV 115.

FIG. 16 is a general perspective view of a LEV docking station 1600. TheLEV docking station 1600 may have a plurality of docking units 125. ALEV 115 may be docked with each of the docking units 125. The LEVdocking station 1600 may be used for parking LEVs 115.

FIG. 17A is a front perspective view of a LEV docking station 1700,according to an example embodiment. The LEV docking station 1700 mayinclude a docking bay 1705. The docking bay 1705 may have two dockingunits 125, each configured to position a LEV 115 antiparallel to oneanother (a “flip-flop” design of the LEV docking station 1700). FIG. 17Bis an upper perspective view of a LEV docking station 1700 shown on FIG.17A.

FIG. 18A is a front perspective view of a LEV docking station 1800,according to an example embodiment. The LEV docking station 1800 mayhave a docking bay 1805. The docking bay 1805 may have two docking units125 each configured to position a LEV 115 parallel to one another (a“parallel” design of the LEV docking station 1800). FIG. 18B is a rearperspective view of a LEV docking station 1800 shown in FIG. 18A.

FIG. 19A is a schematic diagram of a LEV docking station 1900 with LEVs,according to an example embodiment. The LEV docking station 1900 mayinclude a plurality of docking bays 1905. The docking bay 1905 may havea support 1920 and a docking unit 125 connected to the support 1920. Thesupport 1920 may be installed vertically. The docking unit 125 mayinclude a docking member 1915 configured to reversibly receive a LEV115. The LEV docking station 1900 may further include a wheel block 1910for each LEV 115. The wheel block 1910 may be located in line with abottom surface of wheels of the LEV 115 and configured to align the LEVin the docking unit 125 and orient the LEV in the docking unit 125 foroptimizing the parking density. The wheel block 1910 may be furtherconfigured to limit a movement of the LEV 115 after the LEV 115 isdocked with the docking unit 125 (i.e., hold the LEV 115 in place).Optionally, the wheel block 1910 may be further configured to limit orset the allowable size of wheel that can fit in the docking bay 1905.

FIG. 19B is a schematic diagram of a LEV docking station 1950 with noLEVs docked, according to another example embodiment. The LEV dockingstation 1950 may have a plurality of docking bays 1905. The docking bay1905 may have a support 1955 and a docking unit 125 connected to thesupport 1955. The support 1955 may be installed at an angle with respectto the ground.

FIG. 20A is an overall perspective view of a LEV docking station 2000having docking units 125 and wheel blocks 2005 for each of LEVs 115,according to an example embodiment. The wheel block 2005 may be alignedwith a bottom surface of wheels of the LEV 115. Optionally, the wheelblock 2005 may be located on a base 2010. The base 2010 may be sized toaccommodate the wheel block 2005, a support 130 of a charging station,and at least a front wheel of the LEV 115. The wheel block 2005 can beconfigured to align the LEV in the docking unit 125 and orient the LEVin the docking unit 125 for optimizing the parking density. The wheelblock 2005 can be further configured to limit a movement of the LEV 115after the LEV 115 is docked with the docking unit 125 (i.e., hold theLEV 115 in place).

FIG. 20B is a side perspective view of a LEV docking station 2000 havingdocking units 125 and wheel blocks 2005 for each of LEVs 115, accordingto an example embodiment. FIG. 20B shows a first LEV 115 a engaged withthe wheel block 2005 and shows a second LEV 115 b disposed on the base2010 prior to engaging with the wheel block 2005. The wheel block 2005is shown in detail in FIGS. 21A-21C.

FIG. 21A shows an upper view 2100 of a wheel block 2005, according to anexample embodiment. FIG. 21B shows a front perspective view 2130 of awheel block 2005. FIG. 21C shows a rear perspective view 2160 of a wheelblock 2005. The wheel block 2005 may include a straight part 2105 and acurved part 2110. The curved part 2110 may be turned with respect to thestraight part 2105, e.g., turned to the left as shown in FIGS. 21A-21C.The wheel block 2005 can have a projection 2115 on the periphery of boththe straight part 2105 and the curved part 2110, a first recess 2120 inthe middle portion of the straight part 2105, and a second recess 2125in the middle portion of the curved part 2110.

When a user desires to engage the LEV with the wheel block 2005, theuser can first place the front wheel of the LEV in front of an edge 2135of the straight part 2105 of the wheel block 2005. Then, the user canpush the handle bar of the LEV in order to advance the front wheel ofthe LEV forward. The force applied to the handle bar causes the frontwheel to move over the projection 2115 and enter the first recess 2120of the straight part 2105. Upon placing the front wheel into the firstrecess 2120, the user can move the handle bar of the LEV left (or right,e.g., the curved part 2110 can be turned to the right with respect tothe straight part 2105) and simultaneously push the handle bar of theLEV to advance the front wheel of the LEV and have the front wheel passfrom the first recess 2120 to the second recess 2125. In an exampleembodiment, the second recess 2125 may have a greater depth than thefirst recess 2120. Placing the front wheel of the LEV into the secondrecess 2125 of the wheel block 2005 can limit the movement of the frontwheel. Furthermore, placing the front wheel of the LEV into the wheelblock 2005 causes alignment of the LEV in the docking unit 125.Specifically, as shown in FIGS. 20A and 20B, the docking unit 125 islocated substantially over the wheel block 2005. In some embodiments,the location of the docking unit 125 may be horizontally shifted withrespect to the location of the wheel block 2005 to compensate for theangle of inclination of the headtube 120 of the LEV. Due to suchposition of the docking unit 125 and the wheel block 2005 with respectto each other, the headtube 120 of the LEV 115 is disposed in thedocking unit 125 when the front wheel of the LEV 125 is placed into thewheel block 2005. Moreover, configuring the curved part 2110 angled withrespect to the straight part 2105 of the wheel block 2005 can preventthe LEV 115 from backward, forward, and sideward movement in the wheelblock 2005 after the LEV 115 is docked with a docking station equippedwith the docking unit 125 and the wheel block 2005.

FIG. 22A is an enlarged view 2200 of the docking unit 125 with a LEV 115docked with the docking unit 125. The docking unit 125 may have a bumper2205. The bumper 2205 may be configured to reduce scratching of the LEV115 and the docking unit 125 by serving as a cap for the docking unit125.

FIG. 22B shows an enlarged view 2250 of the docking unit 125 with noLEVs docked. The docking unit 125 may include a hollow tubing 2255. Thehollow tubing 2255 may include areas 2260 for a cable to be disposedinside the docking unit 125. In particular, a user may use the tubing2255 to insert his own type of cable or other type of locks to lock theLEV into the docking unit 125 for security purposes.

FIG. 23A is a side view of a LEV docking station 1900 with LEVs as shownin FIG. 19A. The docking unit 125 may stop the LEV 115 from rollingforward. The wheel block 1910 may stop the LEV 115 from rollingbackwards.

FIG. 23B is an upper perspective view of a LEV docking station 1900 withno LEVs docked, according to another example embodiment. The LEV dockingstation 1900 may include a label 2305 to cover screws. The wheel block1910 may mimic the shape of the bumper 2205 to align the LEV 115 withthe docking unit 125.

FIG. 24A is an upper perspective view of a LEV docking station 2400having two docking bays 2405 with bumpers 2205 and wheel blocks 1910 andconfigured to position LEVs 115 antiparallel to one another (a“flip-flop” design), according to another example embodiment. FIG. 24Bis an enlarged view 2450 of the LEV docking station 2400 showing dockingbays 2405 and docking units 125 configured to position LEVs 115antiparallel to one another.

FIG. 25 is a schematic diagram of a LEV docking station 2500, accordingto an example embodiment. The LEV docking station 2500 may have dockingunits 125. Each docking unit 125 may have a locking mechanism 2505configured to lock the LEV into the docking member of the docking unit125. Each docking unit 125 may further include a charging adapter 2510configured to operatively couple to a charging port of the LEV and toprovide power to the LEV. In some example embodiments, the chargingadapter may include a plug-in probe for plugging into the LEV. It shouldbe noted that while some example LEV docking stations may only includelocking mechanisms, some other example LEV docking stations may haveonly charging adapters, and yet some other example LEV docking stationsmay have both locking mechanisms and charging adapters.

The docking unit 125 of the LEV docking station 2500 may further includea processor and one or more sensors in communication with the processor.In an example embodiment, the LEV docking station 2500 may include apower board having a controller board. The controller board may enable acapacity expansion, i.e., adding multiple charge heads. The controllerboard is shown in detail in FIG. 31.

The one or more sensors may be configured to read one or more parametersassociated with the LEV. The one or more parameters may be selected froma group comprising: a charge state of the LEV, a rate of a charge, avoltage, a current, a time, and so forth. The rate of charge may allowfor determination of voltage and current present in the LEV. The LEVdocking station 2000 may further include a boost convertor. The boostconvertor may be configured to take an input voltage and boost the inputvoltage to a predetermined level based on the one or more parametersassociated with the LEV to be charged.

FIG. 26A is an upper view of a LEV docking station 2600 with a pluralityof docking bays for LEVs, according to an example embodiment. FIG. 26Bis a front perspective view of a LEV docking station 2600 with aplurality of docking bays for LEVs, according to an example embodiment.

FIG. 27A is a rear perspective view of a LEV docking station 2500 shownin FIG. 25. The LEV docking station 2500 may include a locking mechanism2505 configured to lock the LEV into the docking member of the dockingunit 125. The LEV docking station 2500 may further include a chargingadapter 2510 configured to operatively couple to a charging port of theLEV and to provide power to the LEV. FIG. 27B is a rear view of a LEVdocking station 2500 shown in FIG. 25.

FIG. 28A is a rear perspective view of a LEV docking station 2800,according to another example embodiment. The LEV docking station 2800may have a locking mechanism 2505 configured to lock the LEV into thedocking member of the docking unit 125. FIG. 28B shows an enlarged view2850 of the docking unit 125 of the LEV docking station 2800 shown inFIG. 28A.

FIG. 29A shows a perspective view of a LEV docking station 2900. The LEVdocking station 2900 includes two docking bays 2905, each having twodocking units 125 configured to position adjacent LEVs antiparallel toone another (a “flip-flop” design).

FIG. 29B is a front perspective view of a LEV docking station 2950 witha plurality of docking bays for LEVs to be positioned antiparallel toone another, according to an example embodiment.

FIG. 30 is a block diagram showing a system 3000 for controllingcharging of one or more LEVs at a LEV docking station. The system 3000may include a processor 3010 in communication with one or more dockingunits of the LEV docking station and a memory unit 3020 in communicationwith the processor 3010 and configured to store instructions executableby the processor 3010. The processor 3010 may be configured to determinea presence of a LEV connected to one of the one or more docking unitsand identify parameters associated with the LEV. In an exampleembodiment, the identifying of the parameters associated with the LEVmay include detecting an electronic signature of the LEV. The electronicsignature may be associated with a manufacturer of the LEV.Specifically, the electronic signature may be characteristic of a LEVdesign developed by a manufacturer. The processor 3010 may be configuredto determine at least a type of the LEV based on the electronicsignature. The parameters include one or more of the following: a typeof the LEV, a battery type of the LEV, a charge level, a number of cellsin a battery of the LEV, a charge voltage of the battery of the LEV, andso forth. Furthermore, the processor 3010 may use the measurements of avoltage, a current, and a time to determine what type of LEV isconnected to each docking bay and whether the LEV is charged or needscharging. If the LEV is charged, the processor does not supply power tothe LEV to avoid shorts, electrolysis, and even explosions.

The processor 3010 may be configured to determine/calculate a chargevoltage of the LEV based on the parameters. The processor 3010 may beconfigured to develop a charging profile for the LEV based on the chargevoltage and the parameters. The processor 3010 may be further configuredto instruct the one of the one or more docking units to supply power tothe LEV based on the charging profile. Based on the charge voltage andthe parameters, the processor may measure how much power it takes tocompletely charge the LEV.

In an example embodiment, the processor 3010 may be further configuredto determine a failure of a battery of the LEV. Based on thedetermination, the processor 3010 may stop supplying the power to theLEV. The processor 3010 may further notify a user associated with theLEV of the failure, e.g., by sending a notification to an applicationrunning on a user device associated with the user. The application maybe in communication with the system 3000. The system 3000 may furtherinclude one or more of hardware control, communication control, andcharge control. The system 3000 may act as a backend platform having oneor more of an administrative panel, customer portal, and user portal.

In an example embodiment, the processor 3010 can be further configuredto determine whether there are empty docking units for parking LEVs andnotify the user of the availability/unavailability of the docking units.Furthermore, the processor 3010 may determine whether the docking unitshave sufficient power for charging LEVs and provide the information tothe user via an application running on a user device.

In an example embodiment, the processor 3010 may be further configuredto determine that a plurality of LEVs are connected to the one or moredocking units. Based on the determination, the processor 3010 maydetermine a charge level of each of the plurality of LEVs. The processor3010 may further determine a charge state of one or more power sourcesassociated with the one or more docking units. Based on the charge leveland the charge state, the processor 3010 may selectively supply a higherlevel of power to one or more of the LEVs having a lower charge leveland selectively supply a lower level of power to one or more of the LEVshaving a higher charge level. The processor 3010 may determineparameters associated with each of the plurality of LEVs. The higherlevel of power and the lower level of power may be determined for theone or more of the LEVs based on the parameters associated with each ofthe plurality of LEVs. The parameters associated with each of theplurality of LEVs may include one of more of the following: a batterytemperature, a voltage, a current, a battery age, a rate at which theLEV consumes power, and so forth.

Therefore, the processor 3010 may perform smart power management of theLEV and load balancing for the batteries being charged by distributingpower to at least charged LEVs. The smart power management performed bythe system 3000 is also referred to herein as “throttling.” The power isdistributed based on various parameters, such as a temperature, voltage,current, and time (age of batteries, as the batteries lose power as theyage), and rate at which the LEV takes power. When LEVs are close to fullcharge, power may be reduced to those LEVs.

The purpose of supplying the lower or higher power is to optimizeperformance of the storage batteries in the charging system and/oroptimize the efficiency of charge delivery to the LEVs. Specifically,the supply of power available in the battery storage of the chargingsystem to the LEV may be smartly balanced among the LEVs. For example,if the battery storage is a solar powered system and it has been cloudyfor a few days, the charging system may not be fully regenerating thestorage batteries. Hence, the charging system may not have enough powerto change the LEVs completely and may need to throttle back (i.e.,reduce) the amount of the power that the charging system provides toLEVs, but may still balance the supplying of power among the LEVs toincrease the charge level of each of the LEVs connected.

FIG. 31 shows a block diagram of a power board 3100 having a controllerboard, according to an example embodiment. FIG. 32 shows a block diagramof a charge head board 3200, according to an example embodiment. Thesystem for controlling charging of one or more LEVs may include thepower board 3100 and the charge head board 3200. The charge head board3200 may control locking units and sensors and control a predeterminednumber of charge heads, e.g., up to eight charge heads. The charge headsmay be associated with charging adapters of docking units operativelycoupled to a charging port of the LEV and providing power to the LEV.

FIG. 33 shows a diagrammatic representation of a computing device for amachine in the exemplary electronic form of a computer system 3300,within which a set of instructions for causing the machine to performany one or more of the methodologies discussed herein can be executed.In various exemplary embodiments, the machine operates as a standalonedevice or can be connected (e.g., networked) to other machines. In anetworked deployment, the machine can operate in the capacity of aserver or a client machine in a server-client network environment, or asa peer machine in a peer-to-peer (or distributed) network environment.The machine can be a field programmable gate array, a personal computer(PC), a tablet PC, a set-top box, a cellular telephone, a digitalcamera, a portable music player (e.g., a portable hard drive audiodevice, such as an Moving Picture Experts Group Audio Layer 3 (MP3)player), a web appliance, a network router, a switch, a bridge, or anymachine capable of executing a set of instructions (sequential orotherwise) that specify actions to be taken by that machine. Further,while only a single machine is illustrated, the term “machine” shallalso be taken to include any collection of machines that individually orjointly execute a set (or multiple sets) of instructions to perform anyone or more of the methodologies discussed herein.

The computer system 3300 may include a processor or multiple processors3302, a hard disk drive 3304, a main memory 3306 and a static memory3308, which communicate with each other via a bus 3310. The computersystem 3300 may also include a network interface device 3312. The harddisk drive 3304 may include a computer-readable medium 3320, whichstores one or more sets of instructions 3322 embodying or utilized byany one or more of the methodologies or functions described herein. Theinstructions 3322 can also reside, completely or at least partially,within the main memory 3306 and/or within the processors 3302 duringexecution thereof by the computer system 3300. The main memory 3306 andthe processors 3302 also constitute machine-readable media.

While the computer-readable medium 3320 is shown in an exemplaryembodiment to be a single medium, the term “computer-readable medium”should be taken to include a single medium or multiple media (e.g., acentralized or distributed database, and/or associated caches andservers) that store the one or more sets of instructions. The term“computer-readable medium” shall also be taken to include any mediumthat is capable of storing, encoding, or carrying a set of instructionsfor execution by the machine and that causes the machine to perform anyone or more of the methodologies of the present application, or that iscapable of storing, encoding, or carrying data structures utilized by orassociated with such a set of instructions. The term “computer-readablemedium” shall accordingly be taken to include, but not be limited to,solid-state memories, optical and magnetic media. Such media can alsoinclude, without limitation, hard disks, floppy disks, NAND or NOR flashmemory, digital video disks, Random Access Memory, Read-Only Memory, andthe like.

The example embodiments described herein may be implemented in anoperating environment comprising software installed on a computer, inhardware, or in a combination of software and hardware.

Thus, universal charging systems, LEV docking stations, and systems forcontrolling charging of one or more LEVs at a LEV docking station havebeen described. Although embodiments have been described with referenceto specific exemplary embodiments, it will be evident that variousmodifications and changes can be made to these exemplary embodimentswithout departing from the broader spirit and scope of the presentapplication. Accordingly, the specification and drawings are to beregarded in an illustrative rather than a restrictive sense.

What is claimed is:
 1. A universal charging system comprising: at leastone charging adapter configured to couple to at least one light electricvehicle (LEV), the at least one charging adapter comprising: electricalcontacts for docking with a charging station; and a charging interfacefor supplying power from the charging station to a battery of the atleast one LEV; and the charging station comprising: at least one dockingunit for receiving the at least one charging adapter of the at least oneLEV, the at least one docking unit having further electrical contactsfor connecting to the at least one charging adapter of the at least oneLEV; and a processor for controlling charging of the at least one LEV,wherein the processor is configured to: determine, upon the receivingthe at least one charging adapter of the at least one LEV by the atleast one docking unit, at least a charge state associated with thecharging station; and selectively supply the power from the chargingstation to the battery of the at least one LEV based on the chargestate.
 2. The system of claim 1, wherein the selectively supplying thepower from the charging station to the battery of the at least one LEVbased on the charge state includes: determining one or more LEVs of theat least one LEV having a higher charge level; determining one or moreLEVs of the at least one LEV having a lower charge level; supplying ahigher power to the one or more LEVs having the lower charge level; andsupplying a lower power to the one or more LEVs having the higher chargelevel.
 3. The system of claim 1, wherein the at least one docking unitfurther comprises one or more sensors in communication with theprocessor.
 4. The system of claim 3, wherein the one or more sensors areconfigured to read one or more parameters associated with the at leastone LEV, the one or more parameters being selected from a groupcomprising a charge level of the at least one LEV, a charge state of theat least one LEV, a rate of charge, a voltage, a current, a type of thebattery, and a time.
 5. The system of claim 1, wherein the at least onedocking unit is configured to connect to one or more power sources, theone or more power sources being selected from an electric grid, a solarpower source, a self-generating power source, and a battery storage. 6.The system of claim 5, wherein the charge state associated with thecharging station includes a charge state of the one or more powersources.
 7. The system of claim 1, wherein the processor is furtherconfigured to determine that the charge state associated with thecharging station is below a predetermined threshold, wherein theselectively supplying the power from the charging station to the batteryof the at least one LEV is based on the determining that the chargestate is below the predetermined threshold.
 8. The system of claim 1,wherein the least one charging adapter includes: a collar configured toenclose a headtube of the at least one LEV; and a charging adapter plateconnected to the collar; wherein the electrical contacts are placed onthe charging adapter plate.
 9. The system of claim 1, wherein the atleast one docking unit includes: a contact block; and a locking unitconfigured to lock the at least one LEV into the at least one dockingunit, wherein the locking unit includes: a locking arm; a tension arm; alock actuator; and an actuator mounting bracket.
 10. The system of claim9, wherein the at least one docking unit further comprises spring rollergrippers configured to grip the at least one charging adapter associatedwith the at least one LEV.
 11. The system of claim 1, wherein thecoupling to the at least one LEV includes coupling the at least onecharging adapter to a charging port of the at least one LEV.
 12. Auniversal charging system comprising a plurality of docking bays, eachof the plurality of docking bays comprising: at least one chargingadapter configured to couple to at least one light electric vehicle(LEV), the at least one charging adapter comprising: electrical contactsfor docking with a charging station; and a charging interface forsupplying power from the charging station to a battery of the at leastone LEV; and the charging station comprising: at least one docking unitfor receiving the at least one charging adapter of the at least one LEV,the at least one docking unit having further electrical contacts forconnecting to the at least one charging adapter of the at least one LEV;and a processor for controlling charging of the at least one LEV,wherein the processor is configured to: determine, upon the receivingthe at least one charging adapter of the at least one LEV by the atleast one docking unit, at least a charge state associated with thecharging station; and selectively supply the power from the chargingstation to the battery of the at least one LEV based on the chargestate.
 13. The system of claim 12, wherein the selectively supplying thepower from the charging station to the battery of the at least one LEVbased on the charge state includes: determining one or more LEVs of theat least one LEV having a higher charge level; determining one or moreLEVs of the at least one LEV having a lower charge level; supplying ahigher power to the one or more LEVs having the lower charge level; andsupplying a lower power to the one or more LEVs having the higher chargelevel.
 14. The system of claim 12, wherein the charging station furthercomprises a backend platform in communication with the processor, thebackend platform being configured to monitor at least connectivity ofthe at least one LEV to the plurality of docking bays and a chargestatus of the at least one LEV.
 15. The system of claim 12, wherein theat least one docking unit is configured to connect to one or more powersources, the one or more power sources being selected from an electricgrid, a solar power source, a self-generating power source, and abattery storage.
 16. The system of claim 15, wherein the charge stateassociated with the charging station includes a charge state of the oneor more power sources.
 17. The system of claim 12, wherein the processoris further configured to determine that the charge state associated withthe charging station is below a predetermined threshold, wherein theselectively supplying the power from the charging station to the batteryof the at least one LEV is based on the determining that the chargestate is below the predetermined threshold.
 18. The system of claim 12,wherein the least one charging adapter includes: a collar configured toenclose a headtube of the at least one LEV; and a charging adapter plateconnected to the collar; wherein the electrical contacts are placed onthe charging adapter plate.
 19. The system of claim 12, wherein the atleast one docking unit includes: a contact block; and a locking unitconfigured to lock the at least one LEV into the at least one dockingunit, wherein the locking unit includes: a locking arm; a tension arm; alock actuator; and an actuator mounting bracket.
 20. A universalcharging system comprising: at least one charging adapter configured tocouple to at least one light electric vehicle (LEV), the at least onecharging adapter comprising: electrical contacts for docking with acharging station; and a charging interface for supplying power from thecharging station to a battery of the at least one LEV; and the chargingstation comprising: at least one docking unit for receiving the at leastone charging adapter of the at least one LEV, the at least one dockingunit having further electrical contacts for connecting to the at leastone charging adapter of the at least one LEV, the at least one dockingunit being configured to connect to one or more power sources; and aprocessor for controlling charging of the at least one LEV, wherein theprocessor is configured to: determine, upon the receiving the at leastone charging adapter of the at least one LEV by the at least one dockingunit, at least a charge state associated with the charging station,wherein the charge state associated with the charging station includes acharge state of the one or more power sources; and selectively supplythe power from the charging station to the battery of the at least oneLEV based on the charge state.